Shower head



FIG. 1 is a perspective view of a shower head showing my new design;

FIG. 2 is a left side view thereof, the right side, top and bottom view being a mirror image of the left side;

FIG. 3 is a front view thereof; and,

FIG. 4 is a rear view thereof.

The broken line showing in FIG. 2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shower head, as shown and described. 